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5.3 Immune system and medicines

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Question 19
H

Monoclonal antibodies can be used to find the position of a blood clot in a blood vessel.

The antibodies bind to a protein found in blood clots.

a.

Explain how monoclonal antibodies can be used to show the position of the blood clot.

[3]
b.

Explain why the antibodies do not bind to the cells lining healthy blood vessels.

[2]
c.

The marker attached to the antibodies is radioactive for only a few hours.

Suggest why.

[1]
Markscheme

5.3 Immune system and medicines Questions

  1. GCSE
  2. /Biology
  3. /5.3 Immune system and medicines

87 exam-style questions on Edexcel GCSE Biology 5.3 Immune system and medicines, covering 5.3.1 The specific immune system, 5.3.2 Response to immunisation, 5.3.3 Advantages and disadvantages of immunisation, 5.3.4 Antibiotics and bacterial infections, 5.3.5 Aseptic techniques in culturing, 5.3.6 Cross-sectional areas of cultures, 5.3.7 Stages of developing new medicines, and 5.3.8 Production of monoclonal antibodies. Each one has a worked solution and a mark scheme showing where the marks go.

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